Container with cap



Jan. 8, 1952 P. FISCH 2,581,849

CONTAINER WITH CAP Filed Dec. 20, 1948 \llllllllllllill lllllllllillllllllllllllllllllllllllllllfllil Patented Jan. 8, 1952 UNITED .v STATES imm o'FncE I oONTAINER WITH GAP,

Paul Fisch, Zurich, Switzerland, assignor to Transimpexylmport, Export und Transit-A. G.,

' Zurich, Switzerland tension' of the two' connector rings, of which only one turns as the cap is screwedor unscrewed, the unequal tension of. said rings being obtained due'to" unequal external diameter of the 'cap and the neck of the tube even if the two rings have equal internal diameters.

Connectors with a bridge or strap which springs outwardly have already been suggested, however merely for the purpose of removing the cap automatically away from the opening of the neck of the tube. According to the invention, however, a new action is achieved by an elastic bridge which tends to hold the rings apart, making chamfer rings on cap and neck unnecessary.

Various novel characteristics and advantages of the invention and the novel features of construction and arrangement ensue from the following description with the accompanying drawing, wherein:

' Fig. 1 is a side view partly in section of the head or cap of a tubular container having applied thereto a connector made according to the invention,

Fig. 2 is a side elevational view as seen in direction of arrow I, Fig. 1,

Fig. 3 is a side elevation of a connector embodying the invention,

Fig. 4 is an end view of the connector seen in Fig. 3,

Fig. 5 is a sectional view taken along line 5-5 of Fig. 3,

Fig. 6 is a side view of a connector in modified form,

Fig. '7 is a top plan view of the connector of Fig. 6,

Fig. 8 is a side view of a connector of a further modified form as applied to a cap and a threaded neck of a container.

According to Figs. 1 and 2, the container consists of a tube I I with a threaded neck I3, on which is fitted a screw cap I2. Tube II and cap I2 are joined together by a connector, which freely engages the cap to permit same to be unscrewed and removed from the neck without becoming detached. The connecting device is formed from a single piece of material and consists of two rings I4 and I5, which are interstiffer joint.

connected by a band or strap. The band I6 is broaderat Mia and IBb' where it is jointed to rings I4 and I5, and provides for a substantially The connecting device is formed preferably from a rubber tube, part of the wall of which has been cut out. Cylindrical ring I 4 holds cap I2, and ringI5 engages neck I3 of tube II. The internal diameter of the rubber tube from which the connector is formed shouldcorrespondto approximately the external diameter of the threads on neck I3, so that-ring I5 easily movesgaround the neck; To facilitate twisting, the inner surface of ring I5 is grooved in axial directionyradially or possibly in spiral fashion, so that its entire inner surface does not contact and grip the neck 13, see I6 in Fig. 5.

Since the external diameter of the cylindrical part of cap I2 is greater than that of neck I3, ring I4 will grip cap I2 more firmly than ring I5 will engage neck I3, so that cap I2 will not slip in ring I4. The joining strip I6 is designed to be longer than the length necessary to join the two rings I l, I5 when the cap is screwed on. Since ring I4 is tightly fastened to cap I2 ring I5 is pressed against tube II by screwing the cap on the tube so that a chamfer groove to hold ring I5 on tube I I is unnecessary.

In order to increase the firmness with which cylindrical ring I4 grips cap I2, it is advantageous to increase the contact surface of ring I4 in comparison to that of ring I5, by choosing an appropriate cut out in the manufacture of the connecting device.

An additional development of the invention makes possible the use of ring I5 as a washer by forming the ring to fit the shoulder of the tube (Fig. 1, illustrated by dotted line I5). In closing the tube, the ring is squeezed between cap I2 and the shoulder of tube I I preventing the escape of the contents.

Other embodiments of the invention are shown in Figs. 6, 7 and 8. Figures 6 and 7 show a connecting device, having two rings I8 and [9 which however do not form parts of a tube, but are rather connected in alignment with each other by strip 20, which must be at least longer than the length necessary to join the two rings I8, I 9 when in superposed position and when the cap is screwed on the threaded neck of the container. The rings I8 and I9 tend to extend in a plane when released or when the cap is unscrewed rather than above one another as in the first embodiment. The rings above mentioned may have like or unlike diameters and may be manufactured together with strip 20 of a nonmetallic elastic substance, such as natural or synthetic rubber and may be moulded, stamped, etc. Again as in the first embodiment, strip 20 is broadened at 20a and 2017 where it joins the rings. The strip 20 is further stifiened in that its longitudinal sectionis Jvwedge shaped. this embodimentone of theirings has spiral ribson' its inner surface to reduce friction.

A further modification is illustrated in Fig;.-.8. "10

The connector consists of rings 2| and 22 with strip 23 similar to connector device'll8; 49;".20

'except that rings 2| andlzare, equallythick.

The embodiments descrihedlahovarefinteiided only as examples, not in any way tobe interpreted to limit the scope of theinvention, as the connector device may also benianiifa'ctnrd 'fioin elastic textiles.

What it is desired to claim and secure byzLetters Patent of the United States is:

1. In a container. having, aethreaded neck inneck said-strap'aprojects laterally beyond said rings whereby upon disengagement of said can from said upper part of said threaded neck said cap will be springedly removed from said threaded neck by said strap and securely held by the latter on said container.

a container according to c laim 1, wherein -'"'.the, inner-face of. said:st "tocoincide with'the innerdiame't'er of'said rings.

isi co i-if o med in shape 3. In a container according to claim 1, wherein the length of said strap corresponds at least to lthefihight of said threaded neck of said container.

fT4.fIn.a icioiita1ner' according to claim 1, wherein ,;'tl1e height drone of said rings is greater than 15 that of the other of said rings, said other ring forniiiig awashen for engagement with said cap 'Wher'iscrwed home on said threaded neck of said container.

PAUL FISCH.

.. follewing referencesiareiof record the file h mets b v. .r

I -V UNITE-D STA'I ES PA'I'ENTS 

